Went to Walmart tonight and bought an Sans Disk 32 GB SD card for $9.98. It is a class 10 card and the package says 'fast for better pictures and full HD video'. Just to compare prices. I visited a camera store website. They sell Delkin 32 GB SD cards for $70.00. What is the difference between the two SD cards? Will my Nikon D3200 be okay with the Walmart SD card?